SOLUTION: forklar meg denne
hvordan regnes denne ut
(3x - 2)(4x +3) - (x + 3)(2x - 5) = (2x + 1)(5x - 2)
Einar
Algebra.Com
Question 244898: forklar meg denne
hvordan regnes denne ut
(3x - 2)(4x +3) - (x + 3)(2x - 5) = (2x + 1)(5x - 2)
Einar
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
(3x-2) * (4x+3) = 12x^2 + x - 6
(x+3) * (2x-5) = 2x^2 + x - 15
(12x^2 + x - 6) - (2x^2 + x - 5) = 10x^2 + 9
(2x+1) * (5x-2) = 10x^2 + x - 2
left side of equation = 10x^2 + 9
igjen side av ligningen = 10x^2 + 9
right side of equation = 10x^2 + x - 2
rett side av ligningen = 10x^2 + x - 2
you get:
du bli :
10x^2 + 9 = 10x^2 + x - 2
solve for x to get:
oppklare for x å bli :
answer is:
svaret er:
x = 11
substitute in your original equation to get:
erstatning inne din original ligningen å bli :
1219 = 1219 confirming your answer is good.
1219 = 1219 bekreftende din svaret er fint.
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